Unnamed (or upper Deadwood Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Other commodities Ag
Ore minerals arsenopyrite

Geographic location

Quadrangle map, 1:250,000-scale CI
Quadrangle map, 1:63,360-scale B-2
Latitude 65.449
Longitude -144.922
Nearby scientific data Find additional scientific data near this location
Location and accuracy The location is the site of sample 3MZ1, plate 1, of U.S. Geological Survey Open-File Report 84-479 (Foster and others, 1984). It is approximately 8 miles upstream of the Deadwood Creek/Steese Highway intersection, on the southern side of the creek valley.

Geologic setting

Geologic description

This sample is from a 75- to 100-foot wide N 60 E-trending breccia zone in quartzite. The zone contains quartz veinlets one-eighth inch to 1 inch wide. Possible arsenopyrite found in quartz boxwork; samples of the brecciated quartzite contain 0.7 ppm Au and 1.0 ppm Ag (Foster and others, 1984).
Geologic map unit (-144.924445310199, 65.4486342432653)
Mineral deposit model Auriferous quartz veins in brecciated quartzite.

Production and reserves

Workings or exploration Surface samples taken.
Indication of production None

References